## Conversion formula

The conversion factor from ounces to kilograms is 0.028349523125, which means that 1 ounce is equal to 0.028349523125 kilograms:

1 oz = 0.028349523125 kg

To convert 18 ounces into kilograms we have to multiply 18 by the conversion factor in order to get the mass amount from ounces to kilograms. We can also form a simple proportion to calculate the result:

1 oz → 0.028349523125 kg

18 oz → M(kg)

Solve the above proportion to obtain the mass M in kilograms:

M(kg) = 18 oz × 0.028349523125 kg

M(kg) = 0.51029141625 kg

The final result is:

18 oz → 0.51029141625 kg

We conclude that 18 ounces is equivalent to 0.51029141625 kilograms:

18 ounces = 0.51029141625 kilograms

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilogram is equal to 1.9596645527545 × 18 ounces.

Another way is saying that 18 ounces is equal to 1 ÷ 1.9596645527545 kilograms.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen ounces is approximately zero point five one kilograms:

18 oz ≅ 0.51 kg

An alternative is also that one kilogram is approximately one point nine six times eighteen ounces.

## Conversion table

### ounces to kilograms chart

For quick reference purposes, below is the conversion table you can use to convert from ounces to kilograms

ounces (oz) kilograms (kg)
19 ounces 0.539 kilograms
20 ounces 0.567 kilograms
21 ounces 0.595 kilograms
22 ounces 0.624 kilograms
23 ounces 0.652 kilograms
24 ounces 0.68 kilograms
25 ounces 0.709 kilograms
26 ounces 0.737 kilograms
27 ounces 0.765 kilograms
28 ounces 0.794 kilograms